Steam-boiler.



No. 680,707. Ptented Aug. 2o, 19m- F. rw. FABER.

STEIW BILER.

(Application filari Nov. 3, 1900.) (No Model.) 2 Sheets-Sheet l.

.1" HI IMI Wlieessem. Mvewm iw/Q) M Lv/C@ 52% WWNWW.

f No. 680,707. Patented Aug. 2U, I90I.

F. M. FABER.

STEAM BOILER.

(Application filed Nov. 3, 1900.) (No Model.) 2 Sheats-$heet 2.

@ma gawd'.

NTTnn RTnTns FATnNT Citrine.

FRANK M. FABER, OF RIVERSIDE, ILLINOIS, ASSIGNCR TO TIIE STIRLING COMPANY, OF CHICAGO, ILLINOIS.

STEAiVlwBOILER.

SPECIFICATION forming part of Letters Patent No. 680,707', dated August 20, 1901.

Application filed November 8, 1900. Serial N- 351310- (N0 modem To all whom, it may concern:

Be itknown that I, FRANK M. FABER, a resident of Riverside, in the county of Cook and State of Illinois, have invented anew and useful Improvement in Steam-Boilers; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to water-tube boilers, its object being to provide for the proper cirio culation of the water between two separate steam and water drums and a lower muddrum, so that two distinct and independent cycles of circulation are established and the flame and heated products of combustion are r 5 so directed as to properly generate and maintain such cycles of circulation.

It also consists in certain other improvements including means for introducing the feed-water into the rear steam and water drum 2o and holding the same separate from the water in said drum, so that it does not enter into the regular circulation, but will pass by tubes into the lower mud-drum; further, so arranging the water-tubes as to give access thereto z5 for cleaning, repair, or removal, and also so converging the tubes that the parts farthest from the heat occupy less space proportionately and conform to the contraction of the gases as their temperature is lowered.

3o To enable others skilled in the art to make and use myinvention, I will describe the same more fully, referring to the accompanying drawings, in which- Figure 1 is a longitudinal section of one form of the boiler illustrated. Fig. 2 is a longitudinal section of another form of same. Fig. 3 is a vertical cross-section on the line 3 3, Fig. 1.

Like figures indicate like parts in each view.

4o The invention is illustrated in its preferred form in Figs. 1 and 3, and Fig. 2 shows an alternative form in which two in ud-drums connected by pipes are used to perform thefunction performed by the single mud-drum of` Fig. 1.

The boiler has the upper steam and water 'drum 1, the rear steam and water drum 2, and the mud-drum 3, as in Fig. 1, which muddrum may have the partition-plate 4, divid- 5o ing it 'into compartments 5 and 6, as shown in Figs. 1 and 3, the double mud-drum 7of Fig.

2 providing like compartments 8 and 9, performing the same functions. In Fig. 1 the compartments 5 and 6 communicate with each other by the space 1() under the partition- 55 plate, while in Fig. 2 the two compartments of the double mud-drum are connected by a suitable number of pipes 11 to give the necessary circulation. It will be noticed that' the partition-plate fl is hinged at its upper6o end, so that in the process of cleaning or working Within the drum it may be swung out of the way and easy access to the mud-drum be obtained. As the two forms of boilers shown dilfer only in the particulars above pointed out, I will hereinafter confine myself to the description of the parts shown in Figs. 1

and 3, the same reference-numerals applying, of course, to Fig. 2.

The boiler is built within a suitable fur- 7o nace-chamber 12, having the ordinary inclosing Walls and having the tire-chamber 13, which is preferably provided with an arch 14 to direct the flame into the first or front bank of tubes. The furnace is provided with the following sets or series of circulatingtubes, which provide for the separate and distinct cycles of circulation above referred to: the set 15, shown as composed of four rows, leading from the compartment 5 into the front 8o steam and water drum 1; the set 16, shown as composed of two rows, leading from the front steam and water drum back of the set 15 into the compartment 5, so forming the first cycle of circulation; the set 17, composed of two rows, leading from the rear compartment 6 of the mud-drum upwardly to the rear steam and water drum 2, and the set 18, shown as composed of two rows, leading from said drum 2 downwardly into said rear com- 9o partments 6, there also being the row of feedwater tubes 19. It will be noticed that the baffle-wall 2O extends up from the mud-drum 3 toward the front steam and water drum back of the front bank of tubes 15, while the rear baffle-wall 21 extends downwardly from the rear steam and water drum 2 toward the mud-drum behind the second bank oftubes 16, forming part of the front cycle of circulation, and directly back of the third bank of tubes 17, roo forming a part of the rear cycle of circulation. In this way the highly-heated products ot' combustion pass along and longitudinally of the front bank of tubes 15, where very rapid generation of steam and circulation is attained, and then downwardly along the tubes 16,which, because the gases surrounding them are not so highlyheated, form the natural downtake for the front cycle of circulation, the course of which is from the mud-drum upwardly through the tubes 15 into the steam and water drum 1 and thence back to the mud-drum through the tubes 16. The same heated gases pass downwardly along the tubes 17 and thence upwardly along the tubes 18, and as these gases are hotter du ring their downward than during their upward course a second cycle of circulation is induced from the mud drum upwardly through the tubes 17 into the rear steam and water drum 2 and thence back tothe muddrum through the tubes 18. The rear steam and water drum 2 is divided into two compartments by the p artition 22, and the feedwater is admitted into the rear compartment 21 through asuitable pipe 23,-and leading from this rear compartment down into the rear compartment 6 ofthe mud-drum are the feedwater tubes 19, through which the feed-water descends, being heated while in the upper steam-drum and in its course through said tubes, where they are exposed to the heat of the gases, so that the feed-water enters the second cycle of circulation after having been so heated in its course.

The arrangement ot' the water-tubes is peculiar in providing for expansion and contraction and the ease of access for cleaning and repairs, and I will now describe the peculiar arrangement.

In the front bank of tubes 15 the tubes are converged upwardly toward the steam and water drum, so as to occupy less space proportionately at their upper ends than at their lower ends, so conforming to the contraction of the gases as their temperature is lowered as they pass along the tubes. The same result, in effect, is obtained when the sets of tubes 16 and 17, as will be shown, converge toward the lower mud-drum, and in the rear tubes 18 and 19, which converge upwardly toward the rear steam and water drum. Such arrangement insures all parts of the tubes being always immersed in the current of heated gases. As will be seen in the drawings, I provide the spaces 25 between the baffle-wall 2O and the tubes 16 and 26 between the baftie-wall 21 and the tubes 18, each such space being provided with an entrance-door 28 and each space being large enough to receive the body ot' a man for the purposes of inspection, cleaning, and renewal of the tubes. The space 29,eXtending down between the tubes 16 and 17 from the space 27, should be sufficiently wide to permit of the removal of the tubes in either set without removing the tubes in front of them or back of them. Such arrangement is important in permitting rapid and cheap repair of the boiler.

The steam-spaces of the drums 1 and 2 are connected by'suitable pipes 30, and the steamout-let pipe 31 leads from either drum, as desired. The steam and water drums may also be provided with suitable water-gages, as shown at 32. The above description of the construction applies to Fig. 2, the compartments 5 and 6 ot' Fig. 1 corresponding to the two chambers 8 and 9 in the double muddrums.

In the use of the boiler the flame and highlyheated products of combustion pass from the fire-chamber 13 around and upwardly along the tubes 15, then downwardly back of the bathe-plate 20, around and along the tubes 16 and 17 and under the baffle-plate 21, and upwardly around the tubes 18 and 19 to the chimney 33. A portion of the heat of the furnace-gases is absorbed by the tubes 15, and consequently said gases are at a lower temperature when they pass down along the tubes 16. The natural result is a cycle of circulation vfrom the mud-drum up through the tubes 15 to the steam and water drum 1, and thence back to the mud-drum through the tubes 16. In the same manner a separate cycle of circulation is established from the mud-drum up through the tubes 17 to the steam and water drum 2, and thence back to the mud-drum through the tubes 18. The partition 4 serves to separate these ltwo cycles of circulation and prevents each from interfering with, checking, or modifying the operation of the other. At the same time the feed-water is brought into the circulation through the feed-pipe 23, thence downwardly through, the tubes 19, being properly heated to discharge the sediment therefrom,and then enters the mud-drum. The steam in this way is collected quickly into the two upper drums, from which it can pass from the two distinct cycles of circulation, while the arrangement provides for the proper application of the heat from the furnace, the proper expansion and contraction of the tubes under the heat, and the easy access to all parts of the furnace and boiler.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a water-tube boiler, the combination of two elevated steam and water drums and a lower mud-drum, pipes connecting the front steam and water drum with the mud-drum, and pipes connecting the rearsteam and water drum with the mud-drum, said pipes being so arranged as to establish two independent cycles of circulation.

'2. In a water-tube boiler, the combination of two elevated steam and water drums and a lowerdouble-compartment mud-drum,pipes connecting the front steam and water drum with the front compartmentof the mud-drum, and pipes connecting the rear steam and water drum with the rear compartment of the mud-drum, so arranged as to establish two independent cycles of circulation.

3. In a water-tube boiler, the combination IOO IIO

of two elevated steam and water drums and a lower mud'ldrum, pipes connecting the front steam and water drum with the mud-drum, pipes connecting the rear steam and water drum with the muddrum, and baffle-walls so arranged as to establish two independent cycles of circulation.

4L. In a water-tube boiler, the combination of two elevated steam and water drums, a mud-drum, uptake and downtake water-cin culating tubes arranged to connect the muddrum and the front steam and water drum, uptake and downtake tubes connecting the mud-drum and the rear steam and water drum, and battle-walls extending longitudinally of said tubes between the uptake and downtake tubes connected with the front upper drum and between the uptake and down take tubes connected with the rear upper drum,' respectively. l

5. In a water-tube boiler, the combination of two elevated steam and water drums, and a mud-drum, uptake and dcwntake tubes connecting the mud-drum and the front steam and water drum, and uptake and downtake tubes connecting the mud-drum and the rear steam and water drum, bathe-walls so arranged as to establish two distinct cycles of circulation, and pipes connecting the steamspaces ofthe elevated steam and water drums.

6. In a water-tube boiler, the combination of two elevated steam and water drums, and av mud-drum, uptake and downtake tubes connecting the mud-drum and the front steam and water drum, and uptake and downtake tubes connecting the mud-drum and the rear steam and water drum, and battle-walls so arranged as to establish two distinct cycles of circulation, the rear steam and water drum having a partition forming a feed -water space, and pipes extending therefrom into the muddrum.

7. In a watentuhe boiler, amud-drum, having water-circulating tubes leading` upwardlyT therefrom, said drum having a partition extending downwardly from the top thereof, and said partition being hinged so as to swing.

8. In a water-tube boiler, the combination ot' two elevated steam and water drums, a lower double-compartment mud-drum, uptake and downtake ci rculating-pipes between the front compartment and the front steam and water drum, uptake and downtake pipes between the rear compartment and the rear steam and water drum, are-chamberin front of the uptake-pipes leading to the front steam and water drum, a baffle-wall back of said uptake-pipes and in front of the downtake-pipes comm unicating with said front compartment, and a bathe-wall extending downwardly from the rear steam and water drum back of the uptake-pipes leading into that drum and in front of the downtake-pipes leading from said drum.

9. In a water-tube boiler, the combination of two elevated steam and water drums, a lower mud-drum, uptake and downtake circulating-pipes between the mud-drum and the front steam and water drum, uptake and downtake pipes between the mud-drum and the rear steam and water drum, a tire-chamber in front of the uptake-pipes leading to the front steam and wat-er drum, a baiilewall back of said uptake-pipes and in front of the downtake-pipes communicating with said front compartment, and a haine-wall eX- tending downwardly from the rear steam and water `drum back of the uptakepipes leading into that drum and in front of the downtake-pipes leading from said drum, and enlarged spaces back of said battle-walls to give access to said tubes.

l0. In a water-tube boiler, the combination of two elevated steam and water drums, a lower mnd-drum, uptake and downtake circulating-pipes between the mud-drum and the front steam and water drum, uptake and downtake pipes between the muddrum and the rear steam and water drum, a nreechamber in front of the uptake-pipes leading to the front steam and water drum, a bafiiewall back of said upiakepipes and in front ot' the downtake-pipes communicating with said front compartment, and a balde-wall eX tending downwardly from the rear steam and water drum back of the uptake-pipes leading into that drum and in front of the downtake-pipes leading from said drum, enlarged spaces back of said baiiiawalls to give access to said tubes, and an enlarged space between the downtake-tubes leading from the front steam and water drum and uptake-tubes leading into the rear steam and water drum.

l l. In a water-tube boiler, the combination of two elevated steam and water drums and a lower mud-drum, uptake and downtake vpipes connecting the front steam and water drum with the mud-drum, and uptake and downtake pipes connecting the rear steam and water drum with the mud-drum, the pipes of both sets being so arranged as to leave an enlarged space between the uptake and downtake pipes.

l2. In a water-tube boiler, the combination of two elevated steam and water drums and a lower mud-drum, uptake and downtake pipes connecting the front steam and water drum with the mud-drum, uptake and downtake pipes connecting the rear steam and water drum with the mud-drum, and baffle-walls between the uptake and downtake pipes of the two sets, said 'pipes being so arranged as to leave an enlarged space back of said bafflewalls.

In testimony whereof I, the said FRANK M. FABER, have hereunto set my hand.

FRANK M. FABER.

Witnesses:

M. T. BAnLow, Cans. F. GRUEING, J r.

Ico

IZO 

